Inner-sole.



Patented luly ll, I899.

J. S. DAMRELL. INNER SOLE.

suea Oct. 1a, 1898) (Application (No Model.)

A 5 E a 5 E THE npkms PETERS o0. woroumon-wnsnmc'rom n. c.

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J OIlN S. DAMRELL, OF BOSTON, MASSACHUSETTS, ASSIGNOR OF ONE IALF' TOW'ILLIAM ROONEY, OF SAME PLACE.

INNER SOLE.

SPECIFICATION forming part of Letters Patent No. 628,699, dated July 11,1899. Ap lication filed October is, 1898. Serial No; 693,402. on model.)

To all whom it may concern.- leather-board, leatherette, or othersuitable Be it known that I, JOHN S. DAMRELL, a material, and thepurpose of which is to pro citizen of the United States, residing atBosvide the sole with some degreeof stiffness ton, in the county ofSuffolk and'State of Masand body. I prefer the buckram because itsachusetts, have invented a new and useful possesses a suitable degreeof stiffness, is Improvement in Inner Soles, of which the fol light,ventilating, and flexible and readily and lowing is a full, clear, andexact description, continuously bendable without being weakreferencebeing had to the accompanying ened. This section of the insole islocated drawings, forminga part of this specification, upon the lowersection A. IO in explaining its nature. 0 is the upper section of thesole. It is The invention relates to aremovable inner preferably made offlannel for winter use or sole having in addition to the usualproperwarmth and a suitable fabric fdr coolness or ties of such solesmeans whereby itis made summer use. a to conform to the sole of thefoot'of the wearer, Between the upper section 0 and the see- I 5particularly between the heel and the instep. tion B there is interposeda strip 1) of wire- It also has a cushion at the heel end, againstgauze, which preferably extends the full which the heel seats and whichrelieves the length of the sole and which rests upon the wearer from theusual jar of a non-cushioned section B. This wire-gauze serves to.proshoe, and also certain electrical and medical vide the sole withresiliency throughout its 20 properties for invigorating the foot'andsyslength. It also serves to form ventilating- 7o tem and forrelievingor curingcertain tendenchambers within the sole, to strengthenthe cies of the feet and for absorbingthe heat and sole, and as a meansfor distributing the eleclnoisture of the foot. trical influence of thesole.

v In the drawings, Figure 1 is a view of the Between the heel end of thesection B and 2 5 insole in perspective, a portion of the fabric thewire-gauze D and upper section 0 is in- 7 forming the upper or topsection thereof be sorted a resilient cushion E, preferably of felt ingremoved to better illustrate its construcand which is of a size .toreceive the heel of tion. Fig. 2 is a viewin plan of the sole, the theuser. There is also located between the upper section being removed anda portion wire-gauze and the section B, at the shank, a

30 of the intermediate section also being respring-metalshanlepieceFforproviding the moved to show the lower section. Fig. 3 isa insole with conformability and springiness at longitudinal centralsection of the complete the shank, and which spring is made of thinsole. Fig. 4 is a cross-section thereof, taken sheet-copper, andcombined with this spring through the shank. Fig. 5 represents theshank-piece is a zincplate G, which is ata 35 combined shank-spring andelectric battery. tached to the copper plate near the center of l Theinsole has a waterproof under surface, its length, so as not to impedethe spring of a top of flannel or other suitable fabricfan the plate,and which, acting with the plate,

I interposed flexible reinforcing-section, an informs the source of theelectrical property or terposed cushion of felt at the heel, and aninenergy provided the sole and distributed 4o terposed spring-shank,which also provides throughout it by means of the metal gauze, go theelectrical current and properties and against the under surface of whichthe cop which is combined with an interposed disper plate is held.tributing, ventilating, and stiffening metallic A chemical compound ofan absorbent charstrip. acter for absorbing the moisture of the feet 5 Aisthe lower section of the sole. It is and to increase the electricalproperties of the 5 made of any suitable closely-woven fabric generatingdevice is placed between the layand is waterproof throughout or provideders B and G in contact with the wire-gauze with a waterproof undersurface a. and the copper and zinc plates. Any com- B is a section ofthe sole, preferably made pound for effecting these objects or either of50 of buekram, although it maybe made of thin them may be employed. Iwould mention as one compound a mixture of sulfur and bichromate ofpotash, which may or may not be perfumed.

The various sections A, I and G are of the same size and are unitedtogether by a common binding-tape H or other cloth, which embraces theentire outer edge of the sole and is united thereto by stitches, whichpass through the edges of said sections.

While in the drawings the copper plate is represented as somewhat longerthan the zinc, I would say that the zinc may be longer and may beextended from both ends of the copper plate into the fore part and heelpart of the sole.

Having thus fully described my invention, I claim and desire to secureby Letters Patent of the United States 1. A removable inner solecomprising two or more layers of flexible, material between which islocated an electrical device shorter than the length of the sole, and awire-gauze strip of substantially the length of the sole, in contactwith said generator, and means whereby the edges of said sole are boundtogether, said generator serving to stiffen the shank of the sole andsaid gauze to distribute thecurrent from said generator over theinterior of the sole, without unduly stiffening it, as set forth.

2. The improved removable inner sole consisting of a nu mber of layersof material united together, an interposed device for generatingelectricity, an interposed means for assisting in the distributionthereof throughout the same and a chemical compound for assisting in thegeneration of the electricity and also of a moisture-absorbent natureinterposed between said layers.

3. A removable inner sole having a Waterproof under layer or surface andcontaining a layer of stiffening material, a strip of wiregauzeextending the length of the sole above said stiffening material, anelectric generator containing a strip of spring metal considerablyshorter than the length of the sole and located in the shank thereof andin electrical contact with said strip of gauze, and an upper surfaceformed of flannel or other suitable material, said parts being boundtogether at the edge, whereby the generator is protected from moistureon the under side ofthe sole and the electricity generated thereby isspread throughout the surface of the sole and protected from the foot,and the Whole is bound together by stitching, as and for the purposesset forth.

JOHN S. DAMRELL.

Witnesses:

F. F. RAYMOND, 20, J. M. DOLAN.

